A recovery waste rock trailing backfill mining method and system

By constructing an industrial mechanism model and a two-layer correction mechanism, and monitoring the follow-up distance and roof displacement in real time, the problem of lagging filling parameters in waste rock follow-up filling mining is solved, and the controllability of roof stability and filling quality is improved, supporting the intensive development of mineral resources and the construction of green mines.

CN122215848APending Publication Date: 2026-06-16CHANGCHUN INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHANGCHUN INST OF TECH
Filing Date
2026-04-23
Publication Date
2026-06-16

AI Technical Summary

⚠Technical Problem

Existing technologies in the mining of gently dipping thin ore bodies with waste rock backfilling fail to effectively utilize the correlation between blasting parameters and waste rock gradation, resulting in delayed adjustment of backfilling parameters, delayed roof control, lack of collaborative decision-making throughout the entire process, increased equipment costs, and difficulty in achieving intensive development of mineral resources and construction of green mines.

⚗Method used

By constructing an industrial mechanism model, inverting the waste rock gradation and adopting a two-layer correction mechanism, and monitoring the follow-up distance and roof displacement changes in real time, we can achieve advanced control and dynamic correction of filling parameters, build an intelligent control system, and realize full-process linkage regulation.

🎯Benefits of technology

Reduce equipment costs, improve the stability of the roof and the controllability of backfilling quality, help the intensive development of mineral resources and the construction of green mines, reduce the pollution risk of tailings ponds, and promote the construction of waste-free mining areas.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of mining engineering, and discloses a kind of stoping waste rock following filling mining method and system.The method comprises the following steps: collecting blasting parameters to input waste rock grading prediction function to obtain grading characteristic vector;Grading characteristic vector is input into filling scheme generation model to obtain optimal filling scheme;Record the horizontal projection net distance of stoping working face and filling working face as follow-up distance when performing filling operation;Calculate the limit exposure distance of roof, and the ratio of follow-up distance and limit exposure distance is used as exposure risk coefficient for pre-correction;According to the optimal filling scheme after pre-correction, perform filling operation;Real-time monitoring of roof displacement rate obtains displacement rate deviation for secondary correction.The present application uses blasting parameters to inverse waste rock grading, which saves real-time detection equipment, and uses follow-up distance to predict roof instability for advanced control, solving the technical problems of waste rock filling parameter lag adjustment and passive response of roof instability.
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